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inet.c @ e599318

4.1155-freebsd-126-freebsd-12freebsd-9.3

Last change on this file since e599318 was e599318, checked in by Sebastian Huber <sebastian.huber@…>, on 10/09/13 at 20:52:54

Update files to match FreeBSD layout

Add compatibility with Newlib header files. Some FreeBSD header files
are mapped by the translation script:

o rtems/bsd/sys/_types.h
o rtems/bsd/sys/errno.h
o rtems/bsd/sys/lock.h
o rtems/bsd/sys/param.h
o rtems/bsd/sys/resource.h
o rtems/bsd/sys/time.h
o rtems/bsd/sys/timespec.h
o rtems/bsd/sys/types.h
o rtems/bsd/sys/unistd.h

It is now possible to include <sys/socket.h> directly for example.

Generate one Makefile which builds everything including tests.

Property mode set to 100644

File size: 37.7 KB

Line
1	/*-
2	* Copyright (c) 1983, 1988, 1993, 1995
3	* The Regents of the University of California. All rights reserved.
4	*
5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions
7	* are met:
8	* 1. Redistributions of source code must retain the above copyright
9	* notice, this list of conditions and the following disclaimer.
10	* 2. Redistributions in binary form must reproduce the above copyright
11	* notice, this list of conditions and the following disclaimer in the
12	* documentation and/or other materials provided with the distribution.
13	* 3. All advertising materials mentioning features or use of this software
14	* must display the following acknowledgement:
15	* This product includes software developed by the University of
16	* California, Berkeley and its contributors.
17	* 4. Neither the name of the University nor the names of its contributors
18	* may be used to endorse or promote products derived from this software
19	* without specific prior written permission.
20	*
21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31	* SUCH DAMAGE.
32	*/
33
34	#if 0
35	#ifndef lint
36	static char sccsid[] = "@(#)inet.c 8.5 (Berkeley) 5/24/95";
37	#endif /* not lint */
38	#endif
39
40	#include <sys/cdefs.h>
41	__FBSDID("$FreeBSD$");
42
43	#include <rtems/bsd/sys/param.h>
44	#include <sys/queue.h>
45	#include <sys/domain.h>
46	#include <sys/protosw.h>
47	#include <sys/socket.h>
48	#include <sys/socketvar.h>
49	#include <sys/sysctl.h>
50
51	#include <net/route.h>
52	#include <net/if_arp.h>
53	#include <netinet/in.h>
54	#include <netinet/in_systm.h>
55	#include <netinet/ip.h>
56	#include <netinet/ip_carp.h>
57	#ifdef INET6
58	#include <netinet/ip6.h>
59	#endif /* INET6 */
60	#include <netinet/in_pcb.h>
61	#include <netinet/ip_icmp.h>
62	#include <netinet/icmp_var.h>
63	#include <netinet/igmp_var.h>
64	#include <netinet/ip_var.h>
65	#include <netinet/pim_var.h>
66	#include <netinet/tcp.h>
67	#include <netinet/tcpip.h>
68	#include <netinet/tcp_seq.h>
69	#define TCPSTATES
70	#include <netinet/tcp_fsm.h>
71	#include <netinet/tcp_timer.h>
72	#include <netinet/tcp_var.h>
73	#include <netinet/tcp_debug.h>
74	#include <netinet/udp.h>
75	#include <netinet/udp_var.h>
76
77	#include <arpa/inet.h>
78	#include <err.h>
79	#include <errno.h>
80	#include <libutil.h>
81	#include <netdb.h>
82	#include <stdint.h>
83	#include <stdio.h>
84	#include <stdlib.h>
85	#include <string.h>
86	#include <unistd.h>
87	#include "netstat.h"
88
89	char inetname(struct in_addr );
90	void inetprint(struct in_addr , int, const char , int);
91	#ifdef INET6
92	static int udp_done, tcp_done;
93	#endif /* INET6 */
94
95	static int
96	pcblist_sysctl(int proto, char **bufp, int istcp)
97	{
98	const char *mibvar;
99	char *buf;
100	size_t len;
101
102	switch (proto) {
103	case IPPROTO_TCP:
104	mibvar = "net.inet.tcp.pcblist";
105	break;
106	case IPPROTO_UDP:
107	mibvar = "net.inet.udp.pcblist";
108	break;
109	case IPPROTO_DIVERT:
110	mibvar = "net.inet.divert.pcblist";
111	break;
112	default:
113	mibvar = "net.inet.raw.pcblist";
114	break;
115	}
116
117	len = 0;
118	if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) {
119	if (errno != ENOENT)
120	warn("sysctl: %s", mibvar);
121	return (0);
122	}
123	if ((buf = malloc(len)) == 0) {
124	warnx("malloc %lu bytes", (u_long)len);
125	return (0);
126	}
127	if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) {
128	warn("sysctl: %s", mibvar);
129	free(buf);
130	return (0);
131	}
132	*bufp = buf;
133	return (1);
134	}
135
136	/*
137	* Copied directly from uipc_socket2.c. We leave out some fields that are in
138	* nested structures that aren't used to avoid extra work.
139	*/
140	static void
141	sbtoxsockbuf(struct sockbuf sb, struct xsockbuf xsb)
142	{
143	xsb->sb_cc = sb->sb_cc;
144	xsb->sb_hiwat = sb->sb_hiwat;
145	xsb->sb_mbcnt = sb->sb_mbcnt;
146	xsb->sb_mcnt = sb->sb_mcnt;
147	xsb->sb_ccnt = sb->sb_ccnt;
148	xsb->sb_mbmax = sb->sb_mbmax;
149	xsb->sb_lowat = sb->sb_lowat;
150	xsb->sb_flags = sb->sb_flags;
151	xsb->sb_timeo = sb->sb_timeo;
152	}
153
154	int
155	sotoxsocket(struct socket so, struct xsocket xso)
156	{
157	struct protosw proto;
158	struct domain domain;
159
160	bzero(xso, sizeof *xso);
161	xso->xso_len = sizeof *xso;
162	xso->xso_so = so;
163	xso->so_type = so->so_type;
164	xso->so_options = so->so_options;
165	xso->so_linger = so->so_linger;
166	xso->so_state = so->so_state;
167	xso->so_pcb = so->so_pcb;
168	if (kread((uintptr_t)so->so_proto, &proto, sizeof(proto)) != 0)
169	return (-1);
170	xso->xso_protocol = proto.pr_protocol;
171	if (kread((uintptr_t)proto.pr_domain, &domain, sizeof(domain)) != 0)
172	return (-1);
173	xso->xso_family = domain.dom_family;
174	xso->so_qlen = so->so_qlen;
175	xso->so_incqlen = so->so_incqlen;
176	xso->so_qlimit = so->so_qlimit;
177	xso->so_timeo = so->so_timeo;
178	xso->so_error = so->so_error;
179	xso->so_oobmark = so->so_oobmark;
180	sbtoxsockbuf(&so->so_snd, &xso->so_snd);
181	sbtoxsockbuf(&so->so_rcv, &xso->so_rcv);
182	return (0);
183	}
184
185	static int
186	pcblist_kvm(u_long off, char **bufp, int istcp)
187	{
188	struct inpcbinfo pcbinfo;
189	struct inpcbhead listhead;
190	struct inpcb *inp;
191	struct xinpcb xi;
192	struct xinpgen xig;
193	struct xtcpcb xt;
194	struct socket so;
195	struct xsocket *xso;
196	char buf, p;
197	size_t len;
198
199	if (off == 0)
200	return (0);
201	kread(off, &pcbinfo, sizeof(pcbinfo));
202	if (istcp)
203	len = 2 * sizeof(xig) +
204	(pcbinfo.ipi_count + pcbinfo.ipi_count / 8) *
205	sizeof(struct xtcpcb);
206	else
207	len = 2 * sizeof(xig) +
208	(pcbinfo.ipi_count + pcbinfo.ipi_count / 8) *
209	sizeof(struct xinpcb);
210	if ((buf = malloc(len)) == 0) {
211	warnx("malloc %lu bytes", (u_long)len);
212	return (0);
213	}
214	p = buf;
215
216	#define COPYOUT(obj, size) do { \
217	if (len < (size)) { \
218	warnx("buffer size exceeded"); \
219	goto fail; \
220	} \
221	bcopy((obj), p, (size)); \
222	len -= (size); \
223	p += (size); \
224	} while (0)
225
226	#define KREAD(off, buf, len) do { \
227	if (kread((uintptr_t)(off), (buf), (len)) != 0) \
228	goto fail; \
229	} while (0)
230
231	/* Write out header. */
232	xig.xig_len = sizeof xig;
233	xig.xig_count = pcbinfo.ipi_count;
234	xig.xig_gen = pcbinfo.ipi_gencnt;
235	xig.xig_sogen = 0;
236	COPYOUT(&xig, sizeof xig);
237
238	/* Walk the PCB list. */
239	xt.xt_len = sizeof xt;
240	xi.xi_len = sizeof xi;
241	if (istcp)
242	xso = &xt.xt_socket;
243	else
244	xso = &xi.xi_socket;
245	KREAD(pcbinfo.ipi_listhead, &listhead, sizeof(listhead));
246	LIST_FOREACH(inp, &listhead, inp_list) {
247	if (istcp) {
248	KREAD(inp, &xt.xt_inp, sizeof(*inp));
249	inp = &xt.xt_inp;
250	} else {
251	KREAD(inp, &xi.xi_inp, sizeof(*inp));
252	inp = &xi.xi_inp;
253	}
254
255	if (inp->inp_gencnt > pcbinfo.ipi_gencnt)
256	continue;
257
258	if (istcp) {
259	if (inp->inp_ppcb == NULL)
260	bzero(&xt.xt_tp, sizeof xt.xt_tp);
261	else if (inp->inp_flags & INP_TIMEWAIT) {
262	bzero(&xt.xt_tp, sizeof xt.xt_tp);
263	xt.xt_tp.t_state = TCPS_TIME_WAIT;
264	} else
265	KREAD(inp->inp_ppcb, &xt.xt_tp,
266	sizeof xt.xt_tp);
267	}
268	if (inp->inp_socket) {
269	KREAD(inp->inp_socket, &so, sizeof(so));
270	if (sotoxsocket(&so, xso) != 0)
271	goto fail;
272	} else {
273	bzero(xso, sizeof(*xso));
274	if (istcp)
275	xso->xso_protocol = IPPROTO_TCP;
276	}
277	if (istcp)
278	COPYOUT(&xt, sizeof xt);
279	else
280	COPYOUT(&xi, sizeof xi);
281	}
282
283	/* Reread the pcbinfo and write out the footer. */
284	kread(off, &pcbinfo, sizeof(pcbinfo));
285	xig.xig_count = pcbinfo.ipi_count;
286	xig.xig_gen = pcbinfo.ipi_gencnt;
287	COPYOUT(&xig, sizeof xig);
288
289	*bufp = buf;
290	return (1);
291
292	fail:
293	free(buf);
294	return (0);
295	#undef COPYOUT
296	#undef KREAD
297	}
298
299	/*
300	* Print a summary of connections related to an Internet
301	* protocol. For TCP, also give state of connection.
302	* Listening processes (aflag) are suppressed unless the
303	* -a (all) flag is specified.
304	*/
305	void
306	protopr(u_long off, const char *name, int af1, int proto)
307	{
308	int istcp;
309	static int first = 1;
310	char *buf;
311	const char *vchar;
312	struct tcpcb *tp = NULL;
313	struct inpcb *inp;
314	struct xinpgen xig, oxig;
315	struct xsocket *so;
316
317	istcp = 0;
318	switch (proto) {
319	case IPPROTO_TCP:
320	#ifdef INET6
321	if (tcp_done != 0)
322	return;
323	else
324	tcp_done = 1;
325	#endif
326	istcp = 1;
327	break;
328	case IPPROTO_UDP:
329	#ifdef INET6
330	if (udp_done != 0)
331	return;
332	else
333	udp_done = 1;
334	#endif
335	break;
336	}
337	if (live) {
338	if (!pcblist_sysctl(proto, &buf, istcp))
339	return;
340	} else {
341	if (!pcblist_kvm(off, &buf, istcp))
342	return;
343	}
344
345	oxig = xig = (struct xinpgen *)buf;
346	for (xig = (struct xinpgen )((char )xig + xig->xig_len);
347	xig->xig_len > sizeof(struct xinpgen);
348	xig = (struct xinpgen )((char )xig + xig->xig_len)) {
349	if (istcp) {
350	tp = &((struct xtcpcb *)xig)->xt_tp;
351	inp = &((struct xtcpcb *)xig)->xt_inp;
352	so = &((struct xtcpcb *)xig)->xt_socket;
353	} else {
354	inp = &((struct xinpcb *)xig)->xi_inp;
355	so = &((struct xinpcb *)xig)->xi_socket;
356	}
357
358	/* Ignore sockets for protocols other than the desired one. */
359	if (so->xso_protocol != proto)
360	continue;
361
362	/* Ignore PCBs which were freed during copyout. */
363	if (inp->inp_gencnt > oxig->xig_gen)
364	continue;
365
366	if ((af1 == AF_INET && (inp->inp_vflag & INP_IPV4) == 0)
367	#ifdef INET6
368	\|\| (af1 == AF_INET6 && (inp->inp_vflag & INP_IPV6) == 0)
369	#endif /* INET6 */
370	\|\| (af1 == AF_UNSPEC && ((inp->inp_vflag & INP_IPV4) == 0
371	#ifdef INET6
372	&& (inp->inp_vflag & INP_IPV6) == 0
373	#endif /* INET6 */
374	))
375	)
376	continue;
377	if (!aflag &&
378	(
379	(istcp && tp->t_state == TCPS_LISTEN)
380	\|\| (af1 == AF_INET &&
381	inet_lnaof(inp->inp_laddr) == INADDR_ANY)
382	#ifdef INET6
383	\|\| (af1 == AF_INET6 &&
384	IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
385	#endif /* INET6 */
386	\|\| (af1 == AF_UNSPEC &&
387	(((inp->inp_vflag & INP_IPV4) != 0 &&
388	inet_lnaof(inp->inp_laddr) == INADDR_ANY)
389	#ifdef INET6
390	\|\| ((inp->inp_vflag & INP_IPV6) != 0 &&
391	IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
392	#endif
393	))
394	))
395	continue;
396
397	if (first) {
398	if (!Lflag) {
399	printf("Active Internet connections");
400	if (aflag)
401	printf(" (including servers)");
402	} else
403	printf(
404	"Current listen queue sizes (qlen/incqlen/maxqlen)");
405	putchar('\n');
406	if (Aflag)
407	printf("%-8.8s ", "Tcpcb");
408	if (Lflag)
409	printf("%-5.5s %-14.14s %-22.22s\n",
410	"Proto", "Listen", "Local Address");
411	else {
412	printf((Aflag && !Wflag) ?
413	"%-5.5s %-6.6s %-6.6s %-18.18s %-18.18s" :
414	"%-5.5s %-6.6s %-6.6s %-22.22s %-22.22s",
415	"Proto", "Recv-Q", "Send-Q",
416	"Local Address", "Foreign Address");
417	if (xflag)
418	printf("%-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %s\n",
419	"R-MBUF", "S-MBUF", "R-CLUS",
420	"S-CLUS", "R-HIWA", "S-HIWA",
421	"R-LOWA", "S-LOWA", "R-BCNT",
422	"S-BCNT", "R-BMAX", "S-BMAX",
423	"(state)");
424	else
425	printf("(state)\n");
426	}
427	first = 0;
428	}
429	if (Lflag && so->so_qlimit == 0)
430	continue;
431	if (Aflag) {
432	if (istcp)
433	printf("%8lx ", (u_long)inp->inp_ppcb);
434	else
435	printf("%8lx ", (u_long)so->so_pcb);
436	}
437	#ifdef INET6
438	if ((inp->inp_vflag & INP_IPV6) != 0)
439	vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
440	"46" : "6 ";
441	else
442	#endif
443	vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
444	"4 " : " ";
445	printf("%-3.3s%-2.2s ", name, vchar);
446	if (Lflag) {
447	char buf1[15];
448
449	snprintf(buf1, 15, "%d/%d/%d", so->so_qlen,
450	so->so_incqlen, so->so_qlimit);
451	printf("%-14.14s ", buf1);
452	} else {
453	printf("%6u %6u ", so->so_rcv.sb_cc, so->so_snd.sb_cc);
454	}
455	if (numeric_port) {
456	if (inp->inp_vflag & INP_IPV4) {
457	inetprint(&inp->inp_laddr, (int)inp->inp_lport,
458	name, 1);
459	if (!Lflag)
460	inetprint(&inp->inp_faddr,
461	(int)inp->inp_fport, name, 1);
462	}
463	#ifdef INET6
464	else if (inp->inp_vflag & INP_IPV6) {
465	inet6print(&inp->in6p_laddr,
466	(int)inp->inp_lport, name, 1);
467	if (!Lflag)
468	inet6print(&inp->in6p_faddr,
469	(int)inp->inp_fport, name, 1);
470	} /* else nothing printed now */
471	#endif /* INET6 */
472	} else if (inp->inp_flags & INP_ANONPORT) {
473	if (inp->inp_vflag & INP_IPV4) {
474	inetprint(&inp->inp_laddr, (int)inp->inp_lport,
475	name, 1);
476	if (!Lflag)
477	inetprint(&inp->inp_faddr,
478	(int)inp->inp_fport, name, 0);
479	}
480	#ifdef INET6
481	else if (inp->inp_vflag & INP_IPV6) {
482	inet6print(&inp->in6p_laddr,
483	(int)inp->inp_lport, name, 1);
484	if (!Lflag)
485	inet6print(&inp->in6p_faddr,
486	(int)inp->inp_fport, name, 0);
487	} /* else nothing printed now */
488	#endif /* INET6 */
489	} else {
490	if (inp->inp_vflag & INP_IPV4) {
491	inetprint(&inp->inp_laddr, (int)inp->inp_lport,
492	name, 0);
493	if (!Lflag)
494	inetprint(&inp->inp_faddr,
495	(int)inp->inp_fport, name,
496	inp->inp_lport != inp->inp_fport);
497	}
498	#ifdef INET6
499	else if (inp->inp_vflag & INP_IPV6) {
500	inet6print(&inp->in6p_laddr,
501	(int)inp->inp_lport, name, 0);
502	if (!Lflag)
503	inet6print(&inp->in6p_faddr,
504	(int)inp->inp_fport, name,
505	inp->inp_lport != inp->inp_fport);
506	} /* else nothing printed now */
507	#endif /* INET6 */
508	}
509	if (xflag) {
510	if (Lflag)
511	printf("%21s %6u %6u %6u %6u %6u %6u %6u %6u %6u %6u %6u %6u ",
512	" ",
513	so->so_rcv.sb_mcnt, so->so_snd.sb_mcnt,
514	so->so_rcv.sb_ccnt, so->so_snd.sb_ccnt,
515	so->so_rcv.sb_hiwat, so->so_snd.sb_hiwat,
516	so->so_rcv.sb_lowat, so->so_snd.sb_lowat,
517	so->so_rcv.sb_mbcnt, so->so_snd.sb_mbcnt,
518	so->so_rcv.sb_mbmax, so->so_snd.sb_mbmax);
519	else
520	printf("%6u %6u %6u %6u %6u %6u %6u %6u %6u %6u %6u %6u ",
521	so->so_rcv.sb_mcnt, so->so_snd.sb_mcnt,
522	so->so_rcv.sb_ccnt, so->so_snd.sb_ccnt,
523	so->so_rcv.sb_hiwat, so->so_snd.sb_hiwat,
524	so->so_rcv.sb_lowat, so->so_snd.sb_lowat,
525	so->so_rcv.sb_mbcnt, so->so_snd.sb_mbcnt,
526	so->so_rcv.sb_mbmax, so->so_snd.sb_mbmax);
527	}
528	if (istcp && !Lflag) {
529	if (tp->t_state < 0 \|\| tp->t_state >= TCP_NSTATES)
530	printf("%d", tp->t_state);
531	else {
532	printf("%s", tcpstates[tp->t_state]);
533	#if defined(TF_NEEDSYN) && defined(TF_NEEDFIN)
534	/* Show T/TCP `hidden state' */
535	if (tp->t_flags & (TF_NEEDSYN\|TF_NEEDFIN))
536	putchar('*');
537	#endif /* defined(TF_NEEDSYN) && defined(TF_NEEDFIN) */
538	}
539	}
540	putchar('\n');
541	}
542	if (xig != oxig && xig->xig_gen != oxig->xig_gen) {
543	if (oxig->xig_count > xig->xig_count) {
544	printf("Some %s sockets may have been deleted.\n",
545	name);
546	} else if (oxig->xig_count < xig->xig_count) {
547	printf("Some %s sockets may have been created.\n",
548	name);
549	} else {
550	printf(
551	"Some %s sockets may have been created or deleted.\n",
552	name);
553	}
554	}
555	free(buf);
556	}
557
558	/*
559	* Dump TCP statistics structure.
560	*/
561	void
562	tcp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
563	{
564	struct tcpstat tcpstat, zerostat;
565	size_t len = sizeof tcpstat;
566
567	#ifdef INET6
568	if (tcp_done != 0)
569	return;
570	else
571	tcp_done = 1;
572	#endif
573
574	if (live) {
575	if (zflag)
576	memset(&zerostat, 0, len);
577	if (sysctlbyname("net.inet.tcp.stats", &tcpstat, &len,
578	zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
579	warn("sysctl: net.inet.tcp.stats");
580	return;
581	}
582	} else
583	kread(off, &tcpstat, len);
584
585	printf ("%s:\n", name);
586
587	#define p(f, m) if (tcpstat.f \|\| sflag <= 1) \
588	printf(m, tcpstat.f, plural(tcpstat.f))
589	#define p1a(f, m) if (tcpstat.f \|\| sflag <= 1) \
590	printf(m, tcpstat.f)
591	#define p2(f1, f2, m) if (tcpstat.f1 \|\| tcpstat.f2 \|\| sflag <= 1) \
592	printf(m, tcpstat.f1, plural(tcpstat.f1), tcpstat.f2, plural(tcpstat.f2))
593	#define p2a(f1, f2, m) if (tcpstat.f1 \|\| tcpstat.f2 \|\| sflag <= 1) \
594	printf(m, tcpstat.f1, plural(tcpstat.f1), tcpstat.f2)
595	#define p3(f, m) if (tcpstat.f \|\| sflag <= 1) \
596	printf(m, tcpstat.f, pluralies(tcpstat.f))
597
598	p(tcps_sndtotal, "\t%lu packet%s sent\n");
599	p2(tcps_sndpack,tcps_sndbyte, "\t\t%lu data packet%s (%lu byte%s)\n");
600	p2(tcps_sndrexmitpack, tcps_sndrexmitbyte,
601	"\t\t%lu data packet%s (%lu byte%s) retransmitted\n");
602	p(tcps_sndrexmitbad,
603	"\t\t%lu data packet%s unnecessarily retransmitted\n");
604	p(tcps_mturesent, "\t\t%lu resend%s initiated by MTU discovery\n");
605	p2a(tcps_sndacks, tcps_delack,
606	"\t\t%lu ack-only packet%s (%lu delayed)\n");
607	p(tcps_sndurg, "\t\t%lu URG only packet%s\n");
608	p(tcps_sndprobe, "\t\t%lu window probe packet%s\n");
609	p(tcps_sndwinup, "\t\t%lu window update packet%s\n");
610	p(tcps_sndctrl, "\t\t%lu control packet%s\n");
611	p(tcps_rcvtotal, "\t%lu packet%s received\n");
612	p2(tcps_rcvackpack, tcps_rcvackbyte,
613	"\t\t%lu ack%s (for %lu byte%s)\n");
614	p(tcps_rcvdupack, "\t\t%lu duplicate ack%s\n");
615	p(tcps_rcvacktoomuch, "\t\t%lu ack%s for unsent data\n");
616	p2(tcps_rcvpack, tcps_rcvbyte,
617	"\t\t%lu packet%s (%lu byte%s) received in-sequence\n");
618	p2(tcps_rcvduppack, tcps_rcvdupbyte,
619	"\t\t%lu completely duplicate packet%s (%lu byte%s)\n");
620	p(tcps_pawsdrop, "\t\t%lu old duplicate packet%s\n");
621	p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte,
622	"\t\t%lu packet%s with some dup. data (%lu byte%s duped)\n");
623	p2(tcps_rcvoopack, tcps_rcvoobyte,
624	"\t\t%lu out-of-order packet%s (%lu byte%s)\n");
625	p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin,
626	"\t\t%lu packet%s (%lu byte%s) of data after window\n");
627	p(tcps_rcvwinprobe, "\t\t%lu window probe%s\n");
628	p(tcps_rcvwinupd, "\t\t%lu window update packet%s\n");
629	p(tcps_rcvafterclose, "\t\t%lu packet%s received after close\n");
630	p(tcps_rcvbadsum, "\t\t%lu discarded for bad checksum%s\n");
631	p(tcps_rcvbadoff, "\t\t%lu discarded for bad header offset field%s\n");
632	p1a(tcps_rcvshort, "\t\t%lu discarded because packet too short\n");
633	p1a(tcps_rcvmemdrop, "\t\t%lu discarded due to memory problems\n");
634	p(tcps_connattempt, "\t%lu connection request%s\n");
635	p(tcps_accepts, "\t%lu connection accept%s\n");
636	p(tcps_badsyn, "\t%lu bad connection attempt%s\n");
637	p(tcps_listendrop, "\t%lu listen queue overflow%s\n");
638	p(tcps_badrst, "\t%lu ignored RSTs in the window%s\n");
639	p(tcps_connects, "\t%lu connection%s established (including accepts)\n");
640	p2(tcps_closed, tcps_drops,
641	"\t%lu connection%s closed (including %lu drop%s)\n");
642	p(tcps_cachedrtt, "\t\t%lu connection%s updated cached RTT on close\n");
643	p(tcps_cachedrttvar,
644	"\t\t%lu connection%s updated cached RTT variance on close\n");
645	p(tcps_cachedssthresh,
646	"\t\t%lu connection%s updated cached ssthresh on close\n");
647	p(tcps_conndrops, "\t%lu embryonic connection%s dropped\n");
648	p2(tcps_rttupdated, tcps_segstimed,
649	"\t%lu segment%s updated rtt (of %lu attempt%s)\n");
650	p(tcps_rexmttimeo, "\t%lu retransmit timeout%s\n");
651	p(tcps_timeoutdrop, "\t\t%lu connection%s dropped by rexmit timeout\n");
652	p(tcps_persisttimeo, "\t%lu persist timeout%s\n");
653	p(tcps_persistdrop, "\t\t%lu connection%s dropped by persist timeout\n");
654	p(tcps_finwait2_drops,
655	"\t%lu Connection%s (fin_wait_2) dropped because of timeout\n");
656	p(tcps_keeptimeo, "\t%lu keepalive timeout%s\n");
657	p(tcps_keepprobe, "\t\t%lu keepalive probe%s sent\n");
658	p(tcps_keepdrops, "\t\t%lu connection%s dropped by keepalive\n");
659	p(tcps_predack, "\t%lu correct ACK header prediction%s\n");
660	p(tcps_preddat, "\t%lu correct data packet header prediction%s\n");
661
662	p3(tcps_sc_added, "\t%lu syncache entr%s added\n");
663	p1a(tcps_sc_retransmitted, "\t\t%lu retransmitted\n");
664	p1a(tcps_sc_dupsyn, "\t\t%lu dupsyn\n");
665	p1a(tcps_sc_dropped, "\t\t%lu dropped\n");
666	p1a(tcps_sc_completed, "\t\t%lu completed\n");
667	p1a(tcps_sc_bucketoverflow, "\t\t%lu bucket overflow\n");
668	p1a(tcps_sc_cacheoverflow, "\t\t%lu cache overflow\n");
669	p1a(tcps_sc_reset, "\t\t%lu reset\n");
670	p1a(tcps_sc_stale, "\t\t%lu stale\n");
671	p1a(tcps_sc_aborted, "\t\t%lu aborted\n");
672	p1a(tcps_sc_badack, "\t\t%lu badack\n");
673	p1a(tcps_sc_unreach, "\t\t%lu unreach\n");
674	p(tcps_sc_zonefail, "\t\t%lu zone failure%s\n");
675	p(tcps_sc_sendcookie, "\t%lu cookie%s sent\n");
676	p(tcps_sc_recvcookie, "\t%lu cookie%s received\n");
677
678	p(tcps_sack_recovery_episode, "\t%lu SACK recovery episode%s\n");
679	p(tcps_sack_rexmits,
680	"\t%lu segment rexmit%s in SACK recovery episodes\n");
681	p(tcps_sack_rexmit_bytes,
682	"\t%lu byte rexmit%s in SACK recovery episodes\n");
683	p(tcps_sack_rcv_blocks,
684	"\t%lu SACK option%s (SACK blocks) received\n");
685	p(tcps_sack_send_blocks, "\t%lu SACK option%s (SACK blocks) sent\n");
686	p1a(tcps_sack_sboverflow, "\t%lu SACK scoreboard overflow\n");
687
688	p(tcps_ecn_ce, "\t%lu packet%s with ECN CE bit set\n");
689	p(tcps_ecn_ect0, "\t%lu packet%s with ECN ECT(0) bit set\n");
690	p(tcps_ecn_ect1, "\t%lu packet%s with ECN ECT(1) bit set\n");
691	p(tcps_ecn_shs, "\t%lu successful ECN handshake%s\n");
692	p(tcps_ecn_rcwnd, "\t%lu time%s ECN reduced the congestion window\n");
693	#undef p
694	#undef p1a
695	#undef p2
696	#undef p2a
697	#undef p3
698	}
699
700	/*
701	* Dump UDP statistics structure.
702	*/
703	void
704	udp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
705	{
706	struct udpstat udpstat, zerostat;
707	size_t len = sizeof udpstat;
708	u_long delivered;
709
710	#ifdef INET6
711	if (udp_done != 0)
712	return;
713	else
714	udp_done = 1;
715	#endif
716
717	if (live) {
718	if (zflag)
719	memset(&zerostat, 0, len);
720	if (sysctlbyname("net.inet.udp.stats", &udpstat, &len,
721	zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
722	warn("sysctl: net.inet.udp.stats");
723	return;
724	}
725	} else
726	kread(off, &udpstat, len);
727
728	printf("%s:\n", name);
729	#define p(f, m) if (udpstat.f \|\| sflag <= 1) \
730	printf(m, udpstat.f, plural(udpstat.f))
731	#define p1a(f, m) if (udpstat.f \|\| sflag <= 1) \
732	printf(m, udpstat.f)
733	p(udps_ipackets, "\t%lu datagram%s received\n");
734	p1a(udps_hdrops, "\t%lu with incomplete header\n");
735	p1a(udps_badlen, "\t%lu with bad data length field\n");
736	p1a(udps_badsum, "\t%lu with bad checksum\n");
737	p1a(udps_nosum, "\t%lu with no checksum\n");
738	p1a(udps_noport, "\t%lu dropped due to no socket\n");
739	p(udps_noportbcast,
740	"\t%lu broadcast/multicast datagram%s undelivered\n");
741	p1a(udps_fullsock, "\t%lu dropped due to full socket buffers\n");
742	p1a(udpps_pcbhashmiss, "\t%lu not for hashed pcb\n");
743	delivered = udpstat.udps_ipackets -
744	udpstat.udps_hdrops -
745	udpstat.udps_badlen -
746	udpstat.udps_badsum -
747	udpstat.udps_noport -
748	udpstat.udps_noportbcast -
749	udpstat.udps_fullsock;
750	if (delivered \|\| sflag <= 1)
751	printf("\t%lu delivered\n", delivered);
752	p(udps_opackets, "\t%lu datagram%s output\n");
753	/* the next statistic is cumulative in udps_noportbcast */
754	p(udps_filtermcast,
755	"\t%lu time%s multicast source filter matched\n");
756	#undef p
757	#undef p1a
758	}
759
760	/*
761	* Dump CARP statistics structure.
762	*/
763	void
764	carp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
765	{
766	struct carpstats carpstat, zerostat;
767	size_t len = sizeof(struct carpstats);
768
769	if (live) {
770	if (zflag)
771	memset(&zerostat, 0, len);
772	if (sysctlbyname("net.inet.carp.stats", &carpstat, &len,
773	zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
774	if (errno != ENOENT)
775	warn("sysctl: net.inet.carp.stats");
776	return;
777	}
778	} else {
779	if (off == 0)
780	return;
781	kread(off, &carpstat, len);
782	}
783
784	printf("%s:\n", name);
785
786	#define p(f, m) if (carpstat.f \|\| sflag <= 1) \
787	printf(m, (uintmax_t)carpstat.f, plural(carpstat.f))
788	#define p2(f, m) if (carpstat.f \|\| sflag <= 1) \
789	printf(m, (uintmax_t)carpstat.f)
790
791	p(carps_ipackets, "\t%ju packet%s received (IPv4)\n");
792	p(carps_ipackets6, "\t%ju packet%s received (IPv6)\n");
793	p(carps_badttl, "\t\t%ju packet%s discarded for wrong TTL\n");
794	p(carps_hdrops, "\t\t%ju packet%s shorter than header\n");
795	p(carps_badsum, "\t\t%ju discarded for bad checksum%s\n");
796	p(carps_badver, "\t\t%ju discarded packet%s with a bad version\n");
797	p2(carps_badlen, "\t\t%ju discarded because packet too short\n");
798	p2(carps_badauth, "\t\t%ju discarded for bad authentication\n");
799	p2(carps_badvhid, "\t\t%ju discarded for bad vhid\n");
800	p2(carps_badaddrs, "\t\t%ju discarded because of a bad address list\n");
801	p(carps_opackets, "\t%ju packet%s sent (IPv4)\n");
802	p(carps_opackets6, "\t%ju packet%s sent (IPv6)\n");
803	p2(carps_onomem, "\t\t%ju send failed due to mbuf memory error\n");
804	#if notyet
805	p(carps_ostates, "\t\t%s state update%s sent\n");
806	#endif
807	#undef p
808	#undef p2
809	}
810
811	/*
812	* Dump IP statistics structure.
813	*/
814	void
815	ip_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
816	{
817	struct ipstat ipstat, zerostat;
818	size_t len = sizeof ipstat;
819
820	if (live) {
821	if (zflag)
822	memset(&zerostat, 0, len);
823	if (sysctlbyname("net.inet.ip.stats", &ipstat, &len,
824	zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
825	warn("sysctl: net.inet.ip.stats");
826	return;
827	}
828	} else
829	kread(off, &ipstat, len);
830
831	printf("%s:\n", name);
832
833	#define p(f, m) if (ipstat.f \|\| sflag <= 1) \
834	printf(m, ipstat.f, plural(ipstat.f))
835	#define p1a(f, m) if (ipstat.f \|\| sflag <= 1) \
836	printf(m, ipstat.f)
837
838	p(ips_total, "\t%lu total packet%s received\n");
839	p(ips_badsum, "\t%lu bad header checksum%s\n");
840	p1a(ips_toosmall, "\t%lu with size smaller than minimum\n");
841	p1a(ips_tooshort, "\t%lu with data size < data length\n");
842	p1a(ips_toolong, "\t%lu with ip length > max ip packet size\n");
843	p1a(ips_badhlen, "\t%lu with header length < data size\n");
844	p1a(ips_badlen, "\t%lu with data length < header length\n");
845	p1a(ips_badoptions, "\t%lu with bad options\n");
846	p1a(ips_badvers, "\t%lu with incorrect version number\n");
847	p(ips_fragments, "\t%lu fragment%s received\n");
848	p(ips_fragdropped, "\t%lu fragment%s dropped (dup or out of space)\n");
849	p(ips_fragtimeout, "\t%lu fragment%s dropped after timeout\n");
850	p(ips_reassembled, "\t%lu packet%s reassembled ok\n");
851	p(ips_delivered, "\t%lu packet%s for this host\n");
852	p(ips_noproto, "\t%lu packet%s for unknown/unsupported protocol\n");
853	p(ips_forward, "\t%lu packet%s forwarded");
854	p(ips_fastforward, " (%lu packet%s fast forwarded)");
855	if (ipstat.ips_forward \|\| sflag <= 1)
856	putchar('\n');
857	p(ips_cantforward, "\t%lu packet%s not forwardable\n");
858	p(ips_notmember,
859	"\t%lu packet%s received for unknown multicast group\n");
860	p(ips_redirectsent, "\t%lu redirect%s sent\n");
861	p(ips_localout, "\t%lu packet%s sent from this host\n");
862	p(ips_rawout, "\t%lu packet%s sent with fabricated ip header\n");
863	p(ips_odropped,
864	"\t%lu output packet%s dropped due to no bufs, etc.\n");
865	p(ips_noroute, "\t%lu output packet%s discarded due to no route\n");
866	p(ips_fragmented, "\t%lu output datagram%s fragmented\n");
867	p(ips_ofragments, "\t%lu fragment%s created\n");
868	p(ips_cantfrag, "\t%lu datagram%s that can't be fragmented\n");
869	p(ips_nogif, "\t%lu tunneling packet%s that can't find gif\n");
870	p(ips_badaddr, "\t%lu datagram%s with bad address in header\n");
871	#undef p
872	#undef p1a
873	}
874
875	/*
876	* Dump ARP statistics structure.
877	*/
878	void
879	arp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
880	{
881	struct arpstat arpstat, zerostat;
882	size_t len = sizeof(arpstat);
883
884	if (live) {
885	if (zflag)
886	memset(&zerostat, 0, len);
887	if (sysctlbyname("net.link.ether.arp.stats", &arpstat, &len,
888	zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
889	warn("sysctl: net.link.ether.arp.stats");
890	return;
891	}
892	} else
893	kread(off, &arpstat, len);
894
895	printf("%s:\n", name);
896
897	#define p(f, m) if (arpstat.f \|\| sflag <= 1) \
898	printf(m, arpstat.f, plural(arpstat.f))
899	#define p2(f, m) if (arpstat.f \|\| sflag <= 1) \
900	printf(m, arpstat.f, pluralies(arpstat.f))
901
902	p(txrequests, "\t%lu ARP request%s sent\n");
903	p2(txreplies, "\t%lu ARP repl%s sent\n");
904	p(rxrequests, "\t%lu ARP request%s received\n");
905	p2(rxreplies, "\t%lu ARP repl%s received\n");
906	p(received, "\t%lu ARP packet%s received\n");
907	p(dropped, "\t%lu total packet%s dropped due to no ARP entry\n");
908	p(timeouts, "\t%lu ARP entry%s timed out\n");
909	p(dupips, "\t%lu Duplicate IP%s seen\n");
910	#undef p
911	#undef p2
912	}
913
914
915
916	static const char *icmpnames[ICMP_MAXTYPE + 1] = {
917	"echo reply", /* RFC 792 */
918	"#1",
919	"#2",
920	"destination unreachable", /* RFC 792 */
921	"source quench", /* RFC 792 */
922	"routing redirect", /* RFC 792 */
923	"#6",
924	"#7",
925	"echo", /* RFC 792 */
926	"router advertisement", /* RFC 1256 */
927	"router solicitation", /* RFC 1256 */
928	"time exceeded", /* RFC 792 */
929	"parameter problem", /* RFC 792 */
930	"time stamp", /* RFC 792 */
931	"time stamp reply", /* RFC 792 */
932	"information request", /* RFC 792 */
933	"information request reply", /* RFC 792 */
934	"address mask request", /* RFC 950 */
935	"address mask reply", /* RFC 950 */
936	"#19",
937	"#20",
938	"#21",
939	"#22",
940	"#23",
941	"#24",
942	"#25",
943	"#26",
944	"#27",
945	"#28",
946	"#29",
947	"icmp traceroute", /* RFC 1393 */
948	"datagram conversion error", /* RFC 1475 */
949	"mobile host redirect",
950	"IPv6 where-are-you",
951	"IPv6 i-am-here",
952	"mobile registration req",
953	"mobile registration reply",
954	"domain name request", /* RFC 1788 */
955	"domain name reply", /* RFC 1788 */
956	"icmp SKIP",
957	"icmp photuris", /* RFC 2521 */
958	};
959
960	/*
961	* Dump ICMP statistics.
962	*/
963	void
964	icmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
965	{
966	struct icmpstat icmpstat, zerostat;
967	int i, first;
968	size_t len;
969
970	len = sizeof icmpstat;
971	if (live) {
972	if (zflag)
973	memset(&zerostat, 0, len);
974	if (sysctlbyname("net.inet.icmp.stats", &icmpstat, &len,
975	zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
976	warn("sysctl: net.inet.icmp.stats");
977	return;
978	}
979	} else
980	kread(off, &icmpstat, len);
981
982	printf("%s:\n", name);
983
984	#define p(f, m) if (icmpstat.f \|\| sflag <= 1) \
985	printf(m, icmpstat.f, plural(icmpstat.f))
986	#define p1a(f, m) if (icmpstat.f \|\| sflag <= 1) \
987	printf(m, icmpstat.f)
988	#define p2(f, m) if (icmpstat.f \|\| sflag <= 1) \
989	printf(m, icmpstat.f, plurales(icmpstat.f))
990
991	p(icps_error, "\t%lu call%s to icmp_error\n");
992	p(icps_oldicmp,
993	"\t%lu error%s not generated in response to an icmp message\n");
994	for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++)
995	if (icmpstat.icps_outhist[i] != 0) {
996	if (first) {
997	printf("\tOutput histogram:\n");
998	first = 0;
999	}
1000	if (icmpnames[i] != NULL)
1001	printf("\t\t%s: %lu\n", icmpnames[i],
1002	icmpstat.icps_outhist[i]);
1003	else
1004	printf("\t\tunknown ICMP #%d: %lu\n", i,
1005	icmpstat.icps_outhist[i]);
1006	}
1007	p(icps_badcode, "\t%lu message%s with bad code fields\n");
1008	p(icps_tooshort, "\t%lu message%s less than the minimum length\n");
1009	p(icps_checksum, "\t%lu message%s with bad checksum\n");
1010	p(icps_badlen, "\t%lu message%s with bad length\n");
1011	p1a(icps_bmcastecho, "\t%lu multicast echo requests ignored\n");
1012	p1a(icps_bmcasttstamp, "\t%lu multicast timestamp requests ignored\n");
1013	for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++)
1014	if (icmpstat.icps_inhist[i] != 0) {
1015	if (first) {
1016	printf("\tInput histogram:\n");
1017	first = 0;
1018	}
1019	if (icmpnames[i] != NULL)
1020	printf("\t\t%s: %lu\n", icmpnames[i],
1021	icmpstat.icps_inhist[i]);
1022	else
1023	printf("\t\tunknown ICMP #%d: %lu\n", i,
1024	icmpstat.icps_inhist[i]);
1025	}
1026	p(icps_reflect, "\t%lu message response%s generated\n");
1027	p2(icps_badaddr, "\t%lu invalid return address%s\n");
1028	p(icps_noroute, "\t%lu no return route%s\n");
1029	#undef p
1030	#undef p1a
1031	#undef p2
1032	if (live) {
1033	len = sizeof i;
1034	if (sysctlbyname("net.inet.icmp.maskrepl", &i, &len, NULL, 0) <
1035	0)
1036	return;
1037	printf("\tICMP address mask responses are %sabled\n",
1038	i ? "en" : "dis");
1039	}
1040	}
1041
1042	#ifndef BURN_BRIDGES
1043	/*
1044	* Dump IGMP statistics structure (pre 8.x kernel).
1045	*/
1046	static void
1047	igmp_stats_live_old(u_long off, const char *name)
1048	{
1049	struct oigmpstat oigmpstat, zerostat;
1050	size_t len = sizeof(oigmpstat);
1051
1052	if (zflag)
1053	memset(&zerostat, 0, len);
1054	if (sysctlbyname("net.inet.igmp.stats", &oigmpstat, &len,
1055	zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
1056	warn("sysctl: net.inet.igmp.stats");
1057	return;
1058	}
1059
1060	printf("%s:\n", name);
1061
1062	#define p(f, m) if (oigmpstat.f \|\| sflag <= 1) \
1063	printf(m, oigmpstat.f, plural(oigmpstat.f))
1064	#define py(f, m) if (oigmpstat.f \|\| sflag <= 1) \
1065	printf(m, oigmpstat.f, oigmpstat.f != 1 ? "ies" : "y")
1066	p(igps_rcv_total, "\t%u message%s received\n");
1067	p(igps_rcv_tooshort, "\t%u message%s received with too few bytes\n");
1068	p(igps_rcv_badsum, "\t%u message%s received with bad checksum\n");
1069	py(igps_rcv_queries, "\t%u membership quer%s received\n");
1070	py(igps_rcv_badqueries,
1071	"\t%u membership quer%s received with invalid field(s)\n");
1072	p(igps_rcv_reports, "\t%u membership report%s received\n");
1073	p(igps_rcv_badreports,
1074	"\t%u membership report%s received with invalid field(s)\n");
1075	p(igps_rcv_ourreports,
1076	"\t%u membership report%s received for groups to which we belong\n");
1077	p(igps_snd_reports, "\t%u membership report%s sent\n");
1078	#undef p
1079	#undef py
1080	}
1081	#endif /* !BURN_BRIDGES */
1082
1083	/*
1084	* Dump IGMP statistics structure.
1085	*/
1086	void
1087	igmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1088	{
1089	struct igmpstat igmpstat, zerostat;
1090	size_t len;
1091
1092	#ifndef BURN_BRIDGES
1093	if (live) {
1094	/*
1095	* Detect if we are being run against a pre-IGMPv3 kernel.
1096	* We cannot do this for a core file as the legacy
1097	* struct igmpstat has no size field, nor does it
1098	* export it in any readily-available symbols.
1099	*/
1100	len = 0;
1101	if (sysctlbyname("net.inet.igmp.stats", NULL, &len, NULL,
1102	0) < 0) {
1103	warn("sysctl: net.inet.igmp.stats");
1104	return;
1105	}
1106	if (len < sizeof(igmpstat)) {
1107	igmp_stats_live_old(off, name);
1108	return;
1109	}
1110	}
1111	#endif /* !BURN_BRIDGES */
1112
1113	len = sizeof(igmpstat);
1114	if (live) {
1115	if (zflag)
1116	memset(&zerostat, 0, len);
1117	if (sysctlbyname("net.inet.igmp.stats", &igmpstat, &len,
1118	zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
1119	warn("sysctl: net.inet.igmp.stats");
1120	return;
1121	}
1122	} else {
1123	len = sizeof(igmpstat);
1124	kread(off, &igmpstat, len);
1125	}
1126
1127	if (igmpstat.igps_version != IGPS_VERSION_3) {
1128	warnx("%s: version mismatch (%d != %d)", __func__,
1129	igmpstat.igps_version, IGPS_VERSION_3);
1130	}
1131	if (igmpstat.igps_len != IGPS_VERSION3_LEN) {
1132	warnx("%s: size mismatch (%d != %d)", __func__,
1133	igmpstat.igps_len, IGPS_VERSION3_LEN);
1134	}
1135
1136	printf("%s:\n", name);
1137
1138	#define p64(f, m) if (igmpstat.f \|\| sflag <= 1) \
1139	printf(m, (uintmax_t) igmpstat.f, plural(igmpstat.f))
1140	#define py64(f, m) if (igmpstat.f \|\| sflag <= 1) \
1141	printf(m, (uintmax_t) igmpstat.f, pluralies(igmpstat.f))
1142	p64(igps_rcv_total, "\t%ju message%s received\n");
1143	p64(igps_rcv_tooshort, "\t%ju message%s received with too few bytes\n");
1144	p64(igps_rcv_badttl, "\t%ju message%s received with wrong TTL\n");
1145	p64(igps_rcv_badsum, "\t%ju message%s received with bad checksum\n");
1146	py64(igps_rcv_v1v2_queries, "\t%ju V1/V2 membership quer%s received\n");
1147	py64(igps_rcv_v3_queries, "\t%ju V3 membership quer%s received\n");
1148	py64(igps_rcv_badqueries,
1149	"\t%ju membership quer%s received with invalid field(s)\n");
1150	py64(igps_rcv_gen_queries, "\t%ju general quer%s received\n");
1151	py64(igps_rcv_group_queries, "\t%ju group quer%s received\n");
1152	py64(igps_rcv_gsr_queries, "\t%ju group-source quer%s received\n");
1153	py64(igps_drop_gsr_queries, "\t%ju group-source quer%s dropped\n");
1154	p64(igps_rcv_reports, "\t%ju membership report%s received\n");
1155	p64(igps_rcv_badreports,
1156	"\t%ju membership report%s received with invalid field(s)\n");
1157	p64(igps_rcv_ourreports,
1158	"\t%ju membership report%s received for groups to which we belong\n");
1159	p64(igps_rcv_nora, "\t%ju V3 report%s received without Router Alert\n");
1160	p64(igps_snd_reports, "\t%ju membership report%s sent\n");
1161	#undef p64
1162	#undef py64
1163	}
1164
1165	/*
1166	* Dump PIM statistics structure.
1167	*/
1168	void
1169	pim_stats(u_long off __unused, const char *name, int af1 __unused,
1170	int proto __unused)
1171	{
1172	struct pimstat pimstat, zerostat;
1173	size_t len = sizeof pimstat;
1174
1175	if (live) {
1176	if (zflag)
1177	memset(&zerostat, 0, len);
1178	if (sysctlbyname("net.inet.pim.stats", &pimstat, &len,
1179	zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
1180	if (errno != ENOENT)
1181	warn("sysctl: net.inet.pim.stats");
1182	return;
1183	}
1184	} else {
1185	if (off == 0)
1186	return;
1187	kread(off, &pimstat, len);
1188	}
1189
1190	printf("%s:\n", name);
1191
1192	#define p(f, m) if (pimstat.f \|\| sflag <= 1) \
1193	printf(m, (uintmax_t)pimstat.f, plural(pimstat.f))
1194	#define py(f, m) if (pimstat.f \|\| sflag <= 1) \
1195	printf(m, (uintmax_t)pimstat.f, pimstat.f != 1 ? "ies" : "y")
1196	p(pims_rcv_total_msgs, "\t%ju message%s received\n");
1197	p(pims_rcv_total_bytes, "\t%ju byte%s received\n");
1198	p(pims_rcv_tooshort, "\t%ju message%s received with too few bytes\n");
1199	p(pims_rcv_badsum, "\t%ju message%s received with bad checksum\n");
1200	p(pims_rcv_badversion, "\t%ju message%s received with bad version\n");
1201	p(pims_rcv_registers_msgs, "\t%ju data register message%s received\n");
1202	p(pims_rcv_registers_bytes, "\t%ju data register byte%s received\n");
1203	p(pims_rcv_registers_wrongiif,
1204	"\t%ju data register message%s received on wrong iif\n");
1205	p(pims_rcv_badregisters, "\t%ju bad register%s received\n");
1206	p(pims_snd_registers_msgs, "\t%ju data register message%s sent\n");
1207	p(pims_snd_registers_bytes, "\t%ju data register byte%s sent\n");
1208	#undef p
1209	#undef py
1210	}
1211
1212	/*
1213	* Pretty print an Internet address (net address + port).
1214	*/
1215	void
1216	inetprint(struct in_addr in, int port, const char proto, int num_port)
1217	{
1218	struct servent *sp = 0;
1219	char line[80], *cp;
1220	int width;
1221
1222	if (Wflag)
1223	sprintf(line, "%s.", inetname(in));
1224	else
1225	sprintf(line, "%.*s.", (Aflag && !num_port) ? 12 : 16, inetname(in));
1226	cp = index(line, '\0');
1227	if (!num_port && port)
1228	sp = getservbyport((int)port, proto);
1229	if (sp \|\| port == 0)
1230	sprintf(cp, "%.15s ", sp ? sp->s_name : "*");
1231	else
1232	sprintf(cp, "%d ", ntohs((u_short)port));
1233	width = (Aflag && !Wflag) ? 18 : 22;
1234	if (Wflag)
1235	printf("%-*s ", width, line);
1236	else
1237	printf("%-.s ", width, width, line);
1238	}
1239
1240	/*
1241	* Construct an Internet address representation.
1242	* If numeric_addr has been supplied, give
1243	* numeric value, otherwise try for symbolic name.
1244	*/
1245	char *
1246	inetname(struct in_addr *inp)
1247	{
1248	char *cp;
1249	static char line[MAXHOSTNAMELEN];
1250	struct hostent *hp;
1251	struct netent *np;
1252
1253	cp = 0;
1254	if (!numeric_addr && inp->s_addr != INADDR_ANY) {
1255	int net = inet_netof(*inp);
1256	int lna = inet_lnaof(*inp);
1257
1258	if (lna == INADDR_ANY) {
1259	np = getnetbyaddr(net, AF_INET);
1260	if (np)
1261	cp = np->n_name;
1262	}
1263	if (cp == 0) {
1264	hp = gethostbyaddr((char )inp, sizeof (inp), AF_INET);
1265	if (hp) {
1266	cp = hp->h_name;
1267	trimdomain(cp, strlen(cp));
1268	}
1269	}
1270	}
1271	if (inp->s_addr == INADDR_ANY)
1272	strcpy(line, "*");
1273	else if (cp) {
1274	strlcpy(line, cp, sizeof(line));
1275	} else {
1276	inp->s_addr = ntohl(inp->s_addr);
1277	#define C(x) ((u_int)((x) & 0xff))
1278	sprintf(line, "%u.%u.%u.%u", C(inp->s_addr >> 24),
1279	C(inp->s_addr >> 16), C(inp->s_addr >> 8), C(inp->s_addr));
1280	}
1281	return (line);
1282	}

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source: rtems-libbsd/freebsd/usr.bin/netstat/inet.c @ e599318

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